20140700

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:207

約数の個数: 72

約数和(自身を含む): 46247040

約数和(自身を除く): 26106340

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 73, 89, 100, 124, 146, 155, 178, 292, 310, 356, 365, 445, 620, 730, 775, 890, 1460, 1550, 1780, 1825, 2225, 2263, 2759, 3100, 3650, 4450, 4526, 5518, 6497, 7300, 8900, 9052, 11036, 11315, 12994, 13795, 22630, 25988, 27590, 32485, 45260, 55180, 56575, 64970, 68975, 113150, 129940, 137950, 162425, 201407, 226300, 275900, 324850, 402814, 649700, 805628, 1007035, 2014070, 4028140, 5035175, 10070350, 20140700]

約数ペア:

[(1, 20140700), (2, 10070350), (4, 5035175), (5, 4028140), (10, 2014070), (20, 1007035), (25, 805628), (31, 649700), (50, 402814), (62, 324850), (73, 275900), (89, 226300), (100, 201407), (124, 162425), (146, 137950), (155, 129940), (178, 113150), (292, 68975), (310, 64970), (356, 56575), (365, 55180), (445, 45260), (620, 32485), (730, 27590), (775, 25988), (890, 22630), (1460, 13795), (1550, 12994), (1780, 11315), (1825, 11036), (2225, 9052), (2263, 8900), (2759, 7300), (3100, 6497), (3650, 5518), (4450, 4526)]